docs: fix typos in v8 migration guide

[ananttheant]

Description

Fixes six spelling typos in the v8 migration guide (website/docs/migrations/v8.md). Docs-only, no code changes.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Refactoring (no functional changes)
• Test update

Changes Made

• compatability → compatibility
• isntances → instances
• releated → related
• maintanable → maintainable
• andn → and
• indepdendent → independent

Compatibility / Package Source

• Unity version(s) tested: N/A (documentation only)
• Package source used (#beta, #main, tag, branch, or file:): N/A
• Resolved commit hash from Packages/packages-lock.json (if using a Git package URL): N/A

Testing/Screenshots/Recordings

• Python tests (cd Server && uv run pytest tests/ -v)
• Unity EditMode tests
• Unity PlayMode tests
• Package import/compile check
• Not applicable (explain why in Additional Notes)

Documentation Updates

• I have added/removed/modified tools or resources
• If yes, I have updated all documentation files using:
  • The LLM prompt at tools/UPDATE_DOCS_PROMPT.md (recommended)
  • Manual review of the generated changes

Related Issues

Additional Notes

Spelling-only fixes in a Markdown doc; no tools, resources, or code paths are affected, so tests are not applicable.

Summary by CodeRabbit

• Documentation
  • Corrected spelling and wording throughout the v8 migration guide.
  • Clarified stdio backward compatibility and in-memory caching of Unity instances.
  • Improved explanations of window logic separation and potential shared test setup.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: f71a95d8-a298-45ff-b9f5-91c9efef748e

📥 Commits

Reviewing files that changed from the base of the PR and between bd72241 and d395363.

📒 Files selected for processing (1)

• website/docs/migrations/v8.md

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📝 Walkthrough

Walkthrough

The v8 migration guide corrects wording in the Server, window logic, and Future plans sections, and adds documentation for in-memory Unity instance caching through StdioPortRegistry.

Changes

v8 migration documentation

Layer / File(s)	Summary
Migration guide wording and caching updates website/docs/migrations/v8.md	Corrects spelling and terminology, clarifies split window class references, documents StdioPortRegistry caching, and updates the DummyMCP testing note.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the doc-only change to fix typos in the v8 migration guide.
Description check	✅ Passed	The description follows the template and includes the change summary, type, changes made, compatibility notes, and testing context.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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